Toa N-8052DS Installation Manual

8052DS is a door station featuring high quality hands-free conversation and has a contact output (momentarily closed) to remotely control an electronic door lock. Using with an electrical box, the station can be mounted to The N-8052DS features robust indoor design, The operating temperature range is –10 to +50°C. As provided with guard nets inside to cover over the openings of microphone and speaker, the N-8052DS can be installed free from care in public space. 2. WALL MOUNTING 1. GENERAL DESCRIPTION Mounting to a 2-gang Switch Box (with cover) Mount the N-8052DS to electrical boxes mounted in the wall. Notes The wall should be over 12 mm thick, and the opening in the wall for an electrical box should be under 115 mm (wide) by 116 mm (high). When using for electronic door lock control, fix the N- 8052DS with tamper-proof screws such as "Torx" screws to prevent it from being easily removed. Be sure to ground the electrical box. 4. WIRING 4.1. Connection to the Exchange 4.2. Connection to an External Relay Connect the Exchange to the station's LINE terminals via the E-7000TB Terminal Board as illustrated. E-7000TB Terminal board Mini-clamp connector (Supplied with the N-8000EX/8010EX) Twisted pair cable N-8000EX/8010EX Exchange 16 lines Both upper and lower terminals (clip terminals) are internally connected. The N-8052DS comes with 2 types of screws: oval head combination screw M4 x 25 and oval head combination screw UNC No.6 x 18. For the electrical box provided with unified threads, use the oval head combination screws UNC No.6 x 18. Accessory screws External power supply Relay Diode N-8000EX/8010EX Exchange +24 V DC GND + - 3. INSTALLATION PRECAUTIONS When installing the N-8052DS outdoors or at locations where it gets wet with water, tightly seal the panel edges. Besides, provide a weep hole at the underside of the mounting box to permit water to drain off. When installing the N-8052DS under difficult environmental conditions such as in coastal areas or at humid locations, cover the inside of the N- 8052DS with coating. For the coating method, consult TOA sales office. Seal the panel edges. N-8052DS's front panel YC-302 2-gang electrical box (option) Wall surface N-8052DS N-8052DS (rear panel) LINE H C Open collector output: 30 V DC, 50 mA N-8052DS (rear panel) LINE H C a wall. Oval head combination screw M4 x 25 (accessory)

The types of cables are to be determined according to the following conditions. Twisted pair wires (such as those used for electronic push-button telephone) are to be used for wiring between the Exchange and the stations in principle. The number of cables pairs laid should be determined considering the possibility of future expansion of the system. Outdoor wires should be used where wiring passes through inaccessible areas such as ceilings or under floors where the maintenance is not performed. Indoor wires may also be used, however, in case where there is no risk of deterioration due to exposure to heat, etc. Note Specifications related to each junction are as follows. Mini-clamp connector (N-8000EX/8010EX line terminal) Conductor diameter: ø0.4 – 0.65 mm (AWG22 – 26), solid wire Outside diameter: ø1.05 mm or below Clip terminal (E-7000TB) Conductor diameter: ø0.4 – 0.8 mm (AWG20 – 26), solid wire Outside diameter: ø1.5 mm or below Terminal station (LINE, H, C terminals) Conductor diameter: ø0.4 – 1.3 mm (AWG16 – 26), solid wire, stranded wire 4.5. Terminal Station Connection Step 1. Strip a cable jacket of approx 7 mm to expose inner cable. For cables, refer to Type of Cable. Note Do not solder plate on exposed inner cables when using a stranded wire. Step 2. Loosen the terminal screws and insert the cables. Step 3. Tighten the terminal screws securely. Notes Tug lightly on the cable to be sure that it does not pull free. If the cable pulls free, loosen the terminal screw again and reconnect from Step 2. To avoid stripping the screws, use the screwdriver appropriate to the screws tightened into the terminal plug. 4.4. Relations Between Core Diameter of Cable and Maximum Cable Length Referring to the following chart as guidelines, design the distance between the Exchange and stations so that loop resistance becomes 170 or less. 4.6. Mini-clamp Connector Connection Connect the mini-clamp connector supplied with the N- 8000EX/8010EX to a cable using a commercially available tool (pliers). Step 1. Cut off two-cable ends in equal length, and insert them securely to a cover section (transparent side) of the mini-clamp connector. Note Insert the cable without stripping the cable jacket. Step 2. With a pair of pliers, lightly pinch the mini-clamp cover and, after ensuring that the cable is securely inserted, firmly squeeze on the cover. Note Squeeze on the mini-clamp cover until it is correctly locked. Step 3. Insert the wired connector (plug) into the exchange's connector (socket) until it locks into place. Cover (transparent side) Cable N-8000EX/8010EX Rear panel Conductor Loop Maximum cable length diameter resistance between the Exchange and station. (mm) ( / km) (Assuming that the loop resistance is 170 .) ø0.4 295 570 m ø0.5 187 900 m ø0.65 113 1.5 km ø0.9 58 2.9 km 7 mm Tighten Terminal screw Cable 133-02-002-9700